Archive
16th of September 2015
Physics
Q:

explain the difference between a.c and d.c generator

Harshita Kanal - Maharashtra - Class X

Wednesday, September 16, 2015 at 18:13:PM

A:

Hi Harshita,

A.C generator: It produces an alternating current which reverses its direction continuously. 

D.C. generator: To get a direct current, a split-ring type commutator must be used. The generator is thus called a D.C generator.

The only difference between a D.C generator and an A.C generator is  that the two ends of the generator coil are linked to the outer circuit. In a D.C generator, we connect the two ends of the coil to a commutator consisting of two half rings of copper. Whereas in an A.C generator, we connect the two ends of the coil to two full rings of copper called slip rings. There is no commutator in an A.C. generator.

Wednesday, September 16, 2015 at 18:47:PM